L.,
First I am sorry that you are in this situation, this is not something that I would wish on anyone. There is alot of advice to be had but I really have questions for you.
I know that you said he's been gone for three months. Do you mean gone, gone and hasn't been home to see his wife and children in three months? Since he isn't in another country, or even on the other side of this country this is something that I think needs some great thought on your part. I have been married 26 years and my husband has had to work out of town a few times, he was miserable and especially when the kids were young, he would drive all night to be home for Sat,. and Sun. and leave again early Monday morning. Now I know that for some it is a bit easier and financial situations are different and may mandiate longer times away from from but three months????? One state away... And I haven't checked a map but I believe the furthest point away in La. is closer to DFW than El Paso.
Do you have a phone number that you can reach him at?? Day and night?
Do you have a physical address where he is living so that if an emergency arose the local police could get a message to him?
Do you have the name of the company, their office address and phone number and even his supervisors name so if an emergency came up and he was out in the field you could get in touch with him?
If you have these things then that's a plus, if not you need to get them and ASAP no excuses! You have children and things happen, he is their father and you have every right to know where he is at all times........... If he is hesitant or gives excuses for not giving you this information then you need to have a real serious talk with yourself.
I think you know some of the answers to the questions that you are asking, be honest with yourself about what you want, what you expect and what you deserve. Marriage is ups and downs and inbetween. Sometimes it easy and sometimes it's the hardest thing you will ever do. I hope that you find some peace in the future one way or the other. As the others have said you are strong you will get thru this, weither it's moving to La. to get your family as it should be or if it takes another turn. I wish I could tell you it will be easy but probably won't, change of any sort rarely is. You have two great sources of strength right there with you and when you feel you are running low give them a big hug and kiss and you will be able to go another day.
Take care, let us know how you are doing, you don't have to be alone.